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  <title>Opens a connection to a MaxDB server</title>

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</div><hr /><div id="function.maxdb-real-connect" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">maxdb_real_connect</h1>
  <h1 class="refname">maxdb::real_connect</h1>
  <p class="verinfo">(PECL maxdb &gt;= 1.0)</p><p class="refpurpose"><span class="refname">maxdb_real_connect</span> -- <span class="refname">maxdb::real_connect</span> &mdash; <span class="dc-title">Opens a connection to a MaxDB server</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.maxdb-real-connect-description">
  <h3 class="title">说明</h3>
  <p class="para">过程化风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>maxdb_real_connect</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$link</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$hostname</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$username</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$passwd</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$dbname</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$port</code><span class="initializer"> = 0</span></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$socket</code></span>
  ]]]]]] )</div>

  <p class="para rdfs-comment">面向对象风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>maxdb::real_connect</strong></span>
    ([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$hostname</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$username</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$passwd</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$dbname</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$port</code><span class="initializer"> = 0</span></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$socket</code></span>
  ]]]]]] )</div>

  <p class="para rdfs-comment">
   <span class="function"><strong>maxdb_real_connect()</strong></span> attempts to establish a
   connection to a MaxDB database engine running on
   <em><code class="parameter">hostname</code></em>.
  </p>
  <p class="para">
   This function differs from <span class="function"><a href="function.maxdb-connect.html" class="function">maxdb_connect()</a></span>:
  </p>
  <ul class="itemizedlist">
   <li class="listitem">
    <p class="para">
     <span class="function"><strong>maxdb_real_connect()</strong></span> needs a valid resource which has
     to be created by function <span class="function"><a href="function.maxdb-init.html" class="function">maxdb_init()</a></span>
    </p>
   </li>
   <li class="listitem">
    <p class="para">
     With function <span class="function"><a href="function.maxdb-options.html" class="function">maxdb_options()</a></span> you can set various options for connection.
    </p>
   </li>
  </ul>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.maxdb-real-connect-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.maxdb-real-connect-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1277">
   <p><strong>Example #1 面向对象风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #FF8000">/*&nbsp;create&nbsp;a&nbsp;connection&nbsp;object&nbsp;which&nbsp;is&nbsp;not&nbsp;connected&nbsp;*/<br /></span><span style="color: #0000BB">$maxdb&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">maxdb_init</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/*&nbsp;set&nbsp;connection&nbsp;options&nbsp;*/<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">options</span><span style="color: #007700">(</span><span style="color: #0000BB">MAXDB_UNICODE</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"FALSE"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">options</span><span style="color: #007700">(</span><span style="color: #0000BB">MAXDB_TIMEOUT</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">5</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;connect&nbsp;to&nbsp;server&nbsp;*/<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">real_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'MONA'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'RED'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'DEMODB'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #0000BB">printf&nbsp;</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connection:&nbsp;%s\n."</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">host_info</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
  <div class="example" id="example-1278">
   <p><strong>Example #2 过程化风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #FF8000">/*&nbsp;create&nbsp;a&nbsp;connection&nbsp;object&nbsp;which&nbsp;is&nbsp;not&nbsp;connected&nbsp;*/<br /></span><span style="color: #0000BB">$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">maxdb_init</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">/*&nbsp;set&nbsp;connection&nbsp;options&nbsp;*/<br /></span><span style="color: #0000BB">maxdb_options</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">MAXDB_UNICODE</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"FALSE"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">maxdb_options</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">MAXDB_TIMEOUT</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">5</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;connect&nbsp;to&nbsp;server&nbsp;*/<br /></span><span style="color: #0000BB">maxdb_real_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'localhost'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'MONA'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'RED'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'DEMODB'</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #0000BB">printf&nbsp;</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connection:&nbsp;%s\n."</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">maxdb_get_host_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
  <p class="para">以上例程的输出类似于：</p>
  <div class="example-contents screen">
<div class="cdata"><pre>
Connection: localhost &lt;...&gt;
</pre></div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.maxdb-real-connect-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.maxdb-connect.html" class="function" rel="rdfs-seeAlso">maxdb_connect()</a> - Open a new connection to the MaxDB server</span></li>
    <li class="member"><span class="function"><a href="function.maxdb-init.html" class="function" rel="rdfs-seeAlso">maxdb_init()</a> - Initializes MaxDB and returns an resource for use with maxdb_real_connect</span></li>
    <li class="member"><span class="function"><a href="function.maxdb-options.html" class="function" rel="rdfs-seeAlso">maxdb_options()</a> - Set options</span></li>
    <li class="member"><span class="function"><a href="function.maxdb-ssl-set.html" class="function" rel="rdfs-seeAlso">maxdb_ssl_set()</a> - Used for establishing secure connections using SSL</span></li>
    <li class="member"><span class="function"><a href="function.maxdb-close.html" class="function" rel="rdfs-seeAlso">maxdb_close()</a> - Closes a previously opened database connection</span></li>
   </ul>
  </p>
 </div>


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